// 页面模板
const formwork = `
  <div class="fw_wrap">
    <h3 class="fw_head"></h3>
    <div class="fw_main">
      <div class="fw_item">
        <h5 class="fw_title"></h5>
        <button class="fw_btn">Show Ans.</button>
        <div class="fw_content hide"></div>
      </div>
    </div>
  </div>
`;


